NVIDIA A40 PCIe vs AMD Radeon R9 285X

VS

NVIDIA A40 PCIe

AMD Radeon R9 285X

We compared two Desktop platform GPUs: 48GB VRAM A40 PCIe and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A40 PCIe 's Advantages

Boost Clock1740MHz

More VRAM (48GB vs 3GB)

Larger VRAM bandwidth (695.8GB/s vs 264.0GB/s)

8704 additional rendering cores

AMD Radeon R9 285X 's Advantages

Lower TDP (200W vs 300W)

Score

Benchmark

FP32 (float)

A40 PCIe +811%

37.42 TFLOPS

Radeon R9 285X

4.104 TFLOPS

A40 PCIe

VS

Radeon R9 285X

Graphics Card

Oct 2020

Release Date

Unknown

Tesla

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1305 MHz

Base Clock

-

1740 MHz

Boost Clock

-

1812 MHz

Memory Clock

1375 MHz

Memory

48GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

384bit

695.8GB/s

Bandwidth

264.0GB/s

Render Config

-

Compute Units

32

84

SM Count

-

10752

Shading Units

2048

336

TMUs

128

112

ROPs

32

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

768 KB

-

Theoretical Performance

194.9 GPixel/s

Pixel Rate

32.06 GPixel/s

584.6 GTexel/s

Texture Rate

128.3 GTexel/s

37.42 TFLOPS

FP16 (half)

-

37.42 TFLOPS

FP32 (float)

4.104 TFLOPS

584.6 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

200W

700 W

Suggested PSU

550 W

3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

8-pin EPS

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GA102

GPU Name

Tonga

-

GPU Variant

Tonga XT (215-0851313)

Ampere

Architecture

GCN 3.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

5 billion

628 mm²

Die Size

366 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

6.3

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